Minor tips, if your group back's its ass into one of the cubbies, nothing aggros until you're ready. We were next to some tables. You can root the first set of mobs and the second mobs, but it seems to break very quickly. The first set (two) of mobs, you can Beguiler's Directed Banishment the mob. Enchanter just keep hitting him with it every time it pops and it takes one of the two mobs out of the equation. That tactic doesn't seem to work on the set of three mobs. A live cleric and a live shaman (two healers both pumping out healers) can keep a decently geared group tank up even if you have to tank all three mobs at once. Running down into the center when your name is called to lower yourself if you're in the cubbies works nicely. The boulder is ridiculously easy to stay away from.